Adding a Glam Brow Design treatment to your spa menu is the smartest revenue booster for your business. Proven facts - minimal monetary investment, instant gratification for customer and designer, quickest, most effective and inexpensive way to make the most immediate, flattering improvement to your client's appearance. Map your strategy. Selling in the service – it’s a collective staff effort, invest in innovative tools, get your technique down, know your market and get your Brow Talk on.